Winter Storm Nemo

Snow began to fall around the Northeast on Friday at the start of what's predicted to be a massive, possibly historic blizzard, a storm called Nemo poised to dump up to 3 feet of snow from New York City to Boston and beyond. And ski resorts are hoping for a turnaround in a disappointing season.

As the Northeast braces for Winter Storm Nemo, airlines are already employing a strategy that has served them well: Cancel flights early and keep planes, crews and passengers away from snowed-in airports. Here's what else the airlines are doing.